www.uis.unesco.org Estimation of results Weighting methods: Weighting methods: The simplest one is weighting by the inverse of the sampling fractions of the sampling units, corrected by the unit non-response; Stratified sampling technique with different sampling fractions weights should be calculated individually; Commonly based on the number of enterprises in a stratum; In international and other comparisons, be sure that the same weighting method is used.
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